Analog Wireless Video Systems
An analog point-to-point video transmission system includes a transmitter, a receiver, two antennas, and AC power adapters. Systems can be more complex depending on number of cameras, range, PTZ control requirements, etc. See our Analog Video Selection Guide for more information.
In a basic wireless video system, standard video and audio signals are input to the transmitter. The transmitter radio transmits these signals wirelessly via a microwave carrier to the receiver radio. The receiver outputs a standard video and audio signal.
All Trango high-frequency wireless solutions, with the exception of the 900 MHz M900S, require clear line-of-sight between antennas for optimal performance. It is sometimes possible to transmit short distances through loose vegetation, but ideally, antennas should be mounted above all obstructions. For very short distances (500 feet or less), it is possible to transmit through several walls as long as they are not constructed of concrete or metal materials. Use of repeaters helps mitigate line-of-sight problems. Instead of requiring clear line-of-sight to the ultimate destination, a receiver/transmitter combo can be placed at the point of obstruction between the camera and the ultimate receiver location.
Our products are governed by FCC Part 15 regulations. All wireless equipment operating in the 900 MHz, 2.4 GHz, and 5 GHz unlicensed bands must adhere to Part 15 regulations. Part 15 regulations are designed to ensure that no one device can dominate the spectrum in a given area. However, to ensure that interference will not be an issue, a thorough wireless site survey should be conducted prior to installation of equipment.
Trango equipment utilizes standard industry formats such as NTSC and PAL for video (color or black-and-white) and RS232, RS422, and RS485 for data to ensure compatibility with all major brands of CCTV equipment.
For details, read the article: Antenna Polarization and Positioning for Analog Wireless Systems.
Generally it is not recommended, though it depends on the cable and the frequency you are using. In general the longer the cable between the antenna and receiver the greater the loss of signal strength.
It depends on the cable type. As far as the cable type will allow you before losing one volt, peak to peak. Generally RG-59 cable will allow a length of 750 feet before the video quality decreases.
Some digital cellular phones, fluorescent lighting, and cordless phones may or may not have an effect on a 900 MHz transmitters. Microwave ovens in close proximity to 2.4 GHz transmitters can cause interference, as can other wireless products in the same ISM band (such as cordless phones or WLANs) if they are using the same channel as the Trango video transmitter.
Yes, ranges specified for each product include a fade margin to account for weather conditions such as rain and snow.